St. Peter Sandstone Pelecypods, St. Paul, Minnesota (Ordovician to of the United States)

Where: Hennepin County, Minnesota (45.0° N, 93.1° W: paleocoordinates 18.3° S, 65.3° W)

• coordinate based on political unit

• local area-level geographic resolution

When: St. Peter Sandstone Formation, Whiterockian to Whiterockian (470.0 - 449.6 Ma)

• formation-level stratigraphic resolution

Environment/lithology: marine; ferruginous sandstone

• Siliciclastic indet. Environmental call by T. Hanson.
• "[C]lean, friable to iron-cemented sandstone."

Size class: macrofossils

Collection methods: "Where possible, stratigraphic information is taken from museum labels; where this is not possible, it is taken from Bassler (1915)."

Primary reference: J., J.r. Pojeta. 1987. Ordovician pelecypods from the Upper Mississippi Valley. In R. E. Sloan (ed.), Middle and Late Ordovician lithostratigraphy and biostratigraphy of the Upper Mississippi Valley: Minnesota Geological Survey Report of Investigations 35 182-182 [S. Holland/T. Hanson/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 23547: authorized by Steven Holland, entered by Tori Hanson on 16.07.2002

Creative Commons license: CC BY (attribution)

Taxonomic list

Show authors, comments, and common names
Bivalvia
 Cyrtodontida - Cyrtodontidae
Cyrtodonta sp.
Cyrtodonta sp. Billings 1858 clam
 Modiomorphida - Modiomorphidae
? Goniophora sp., "Psiloconcha sp." = Cymatonota, Modiolopsis sp., Orthodesma sp.
? Goniophora sp. Phillips 1848 clam
"Psiloconcha sp." = Cymatonota Ulrich 1893 clam
Modiolopsis sp. Hall 1847 clam
Orthodesma sp. Hall and Whitfield 1875 clam
 Nuculida - Cardiolariidae
Deceptrix sp.
Deceptrix sp. Fuchs 1919 clam